Logic Gate from Switches (Part 2)

The diagram above shows a logic gate with Boolean logical inputs $A, B$ , and their logical negations $\bar{A}, \bar{B}$ . The source voltage is 5 volts.

$V_{out} = 5$ corresponds to a high (true) logical output, and $V_{out} = 0$ corresponds to a low (false) logical output. A switch is closed (conducting) if the associated logical signal is high (true), and the switch is open (non-conducting) if the associated logical signal is low (false).

Which logical operation does this gate perform?

Note: In the diagram, $B$ and $\bar{B}$ look somewhat similar. Look carefully.